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Oxygen demanding wastes
  • a)
    Decrease the oxygen level in water.
  • b)
    Increase the oxygen level in water.
  • c)
    Do not change the oxygen level in water.
  • d)
    Increase the temperature of water.
Correct answer is option 'A'. Can you explain this answer?
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Oxygen demanding wastesa)Decrease the oxygen level in water.b)Increase...
  • Oxygen demanding wastes are organic compounds, such as sewage and agricultural runoff, which decompose through microbial action in water.
  • The process of microbial decomposition requires oxygen, and as a result, these wastes decrease the oxygen level in the water.
  • If the oxygen level drops below a certain level, aquatic organisms can die due to suffocation, which leads to a condition called hypoxia.
  • This can also cause a decrease in biodiversity and ecological productivity in water bodies.
  • Therefore, it is important to reduce the discharge of oxygen-demanding wastes into water bodies to maintain the ecological balance.
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Oxygen demanding wastesa)Decrease the oxygen level in water.b)Increase...
Understanding Oxygen Demanding Wastes
Oxygen demanding wastes are organic materials that consume dissolved oxygen in water bodies during their decomposition. This process has significant implications for aquatic ecosystems.
How Oxygen Demanding Wastes Affect Water
- Decrease in Oxygen Levels: When organic matter, such as sewage, food waste, or agricultural runoff, enters a water body, bacteria and microorganisms break it down.
- Microbial Activity: As these organisms decompose the organic material, they utilize dissolved oxygen from the water, resulting in a reduction of available oxygen for fish and other aquatic life.
Consequences of Lower Oxygen Levels
- Impact on Aquatic Life: Reduced oxygen levels can lead to hypoxic conditions (low oxygen), which can be detrimental or even lethal to fish and other organisms that rely on oxygen for survival.
- Eutrophication: Excessive oxygen demanding wastes can lead to eutrophication, where nutrient overload promotes algal blooms. When these blooms die off, their decomposition further depletes oxygen.
Importance of Monitoring Oxygen Levels
- Water Quality Assessment: Monitoring the levels of oxygen demanding wastes is crucial for maintaining water quality and ensuring the health of aquatic ecosystems.
- Regulatory Measures: Effective management practices and regulations are necessary to reduce the input of such wastes into water bodies to preserve biodiversity.
In conclusion, oxygen demanding wastes primarily decrease the oxygen levels in water, posing serious threats to aquatic ecosystems and necessitating careful management to ensure the sustainability of these environments.
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Oxygen demanding wastesa)Decrease the oxygen level in water.b)Increase the oxygen level in water.c)Do not change the oxygen level in water.d)Increase the temperature of water.Correct answer is option 'A'. Can you explain this answer?
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